Lower Limb 3

Front of Part I Cutaneous Supply of The Front of The Thigh (Anterolateral and Anteromedial Sides) 1- Femoral Branch of Genitofemoral Nerve (L1-L2)

2- Lateral Cutaneous Nerve of The Thigh (L2-L3) Posterior Branch

Anterior Branch 4- Ilioinguinal Nerve (L1)

5- Cutaneous Branch of Obturator Nerve 3- Intermediate Cutaneous Nerve of The Thigh (L2-L3) (L2-L3) Lateral Branch Medial Branch 6- Medial Cutaneous Nerve of The Thigh (L2-L3)

7- Infrapatellar Branch of Muscles of The Front of The Thigh 1- Sartorius (Origin, Course, Insertion and Nerve Supply) Anterior Superior Iliac Spine

Sartorius Muscle

Upper Part of Medial Side of the Action of Sartorius 1- On The Joint Abduction of The Hip Flexion of The Hip

Sartorius 2- On The Joint Flexion of The Knee

Medial Rotation of The Tibia When The Knee is Flexed 2- Quadriceps Muscle A- Rectus Femoris D- Vastus Intermedius

B- Vastus Lateralis

C- A- Rectus Femoris Origin, Insertion and Nerve Supply Straight Head (Originates from the Anterior inferior iliac spine)

Reflected Head (Originates from the impression above acetabulum)

Rectus Femoris

Common Tendon B- Vastus Lateralis Origin, Insertion and Nerve Supply Vastus Lateralis

1- Upper part of Itertrochanteric Line

3- Lateral Margin of 2- Root of Gluteal Tuberosity Greater Trochanter

4- Lateral Lip of Linea Aspra

Common Tendon C- Vastus Medialis Origin, Insertion and Nerve Supply 1- Lower part of Itertrochanteric Line

2- Spiral Line

3- Medial Lip of Linea Aspra

Vastus Medialis 4- Medial Supracondylar Line

Common Tendon D- Vastus Intermedius Origin, Insertion and Nerve Supply Vastus Intermedius

It Originates from The Upper ¾ of The Anterior and Lateral Surfaces of The Shaft of The Insertion of The Quadriceps Muscle Quadriceps Femoris Tendon

Lateral Patellar Retinaculum Medial Patellar Retinaculum

Ligamentum Patellae

Tibial Tuberosity Action of Quadriceps Muscle 2- Helps Flexion of The Hip By The Rectus Femoris

1- The Chief Extensor of The Knee

3- Keeps Patella in Position 3- Articularis Genu Muscle